[GreenKeys] Teletypes in police stations... anyone done a definitive stud...

COURYHOUSE at aol.com COURYHOUSE at aol.com
Mon Feb 18 13:42:58 EST 2013


Jim!  will check all this out  many thanks!
 
Ed#  smecc.org 
 
 
In a message dated 2/18/2013 9:41:25 A.M. Mountain Standard Time,  
jhhaynes at earthlink.net writes:

There is  a long history of teletypewriter use by police organizations.
Recently  photos of TTY equipment in old police operations have been 
offered on  ebay.com  One mention of police service in the Eastern U.S.
is given  in a paper "Modern Practices in Private Wire Telegraph Service"
by R. E.  Pierce of AT&T, AIEE Transactions, June 1931, p. 426.

Circa 1960  Teletype had a switching system called TASP that I was told
was marketed  primarily to police departments.  Some patents describing
this system  are 2,625,601 (1953) and 3,251,929 (1966).  It's curious that
Teletype  offered such a system, since switching arrangements were usually
considered  to be on Bell Labs' turf.  (Or Western Union, for  non-Bell
users)  Teletype was allowed to do switching work for  customers where
it was felt there was no general Bell System market.   Therefore I assume
TASP was marketed to police (and other agencies) that  wanted ownership
of the equipment rather than a leased service.

When  amateur RTTY first got started in the late 1940s the majority of
Teletype  machines available to amateurs were Model 12 page printers,
and most of  them seemed to come out of New York.  I remember reading
somewhere  that most of them had come out of the New York police 
department.   The NYPD had replaced its tty machines out of necessity
when Teletype quit  making maintenance parts for them.




jhhaynes at earthlink  dot net
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